21397812

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{593}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 30760140

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 97, 124, 186, 194, 291, 372, 388, 582, 593, 1164, 1186, 1779, 2372, 3007, 3558, 6014, 7116, 9021, 12028, 18042, 18383, 36084, 36766, 55149, 57521, 73532, 110298, 115042, 172563, 220596, 230084, 345126, 690252, 1783151, 3566302, 5349453, 7132604, 10698906, 21397812]

約数ペア:

[(1, 21397812), (2, 10698906), (3, 7132604), (4, 5349453), (6, 3566302), (12, 1783151), (31, 690252), (62, 345126), (93, 230084), (97, 220596), (124, 172563), (186, 115042), (194, 110298), (291, 73532), (372, 57521), (388, 55149), (582, 36766), (593, 36084), (1164, 18383), (1186, 18042), (1779, 12028), (2372, 9021), (3007, 7116), (3558, 6014)]